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- Spectral_signature abstract "Spectral signatures the difference in the reflectance/emittance characteristics with respect to wavelengths (i.e.,reflectance/emittance as a function of wavelength) is called as spectral signature. The spectral signature of stars indicates the composition of the stellar atmosphere. The spectral signature of an object is a function of the incidental EM wavelength and material interaction with that section of the electromagnetic spectrum. The measurements can be made with various instruments, including a task specific spectrometer, although the most common method is separation of the red, green, blue and near infrared portion of the EM spectrum as acquired by digital cameras. Calibrating spectral signatures under specific illumination are collected in order to apply an empirical correction to airborne or satellite imagery digital images.The user of one kind of spectroscope looks through it at a tube of ionized gas. The user sees specific lines of colour falling on a graduated scale. Each substance will have its own unique pattern of spectral lines.Most remote sensing applications process digital images to extract spectral signatures at each pixel and use them to divide the image in groups of similar pixels (segmentation) using different approaches. As a last step, they assign a class to each group (classification) by comparing with known spectral signatures. Depending on pixel resolution, a pixel can represent many spectral signature "mixed" together - that is why much remote sensing analysis is done to "unmix mixtures". Ultimately correct matching of spectral signature recorded by image pixel with spectral signature of existing elements leads to accurate classification in remote sensing.".
- Spectral_signature thumbnail Spectrum_of_blue_sky.svg?width=300.
- Spectral_signature wikiPageID "1194086".
- Spectral_signature wikiPageLength "2079".
- Spectral_signature wikiPageOutDegree "17".
- Spectral_signature wikiPageRevisionID "682218455".
- Spectral_signature wikiPageWikiLink Category:Spectroscopy.
- Spectral_signature wikiPageWikiLink Digital_camera.
- Spectral_signature wikiPageWikiLink Digital_image.
- Spectral_signature wikiPageWikiLink Digital_images.
- Spectral_signature wikiPageWikiLink Electromagnetic_spectrum.
- Spectral_signature wikiPageWikiLink Image_segmentation.
- Spectral_signature wikiPageWikiLink Infrared.
- Spectral_signature wikiPageWikiLink Ionized_gas.
- Spectral_signature wikiPageWikiLink Near_infrared.
- Spectral_signature wikiPageWikiLink Pixel.
- Spectral_signature wikiPageWikiLink Plasma_(physics).
- Spectral_signature wikiPageWikiLink Remote_sensing.
- Spectral_signature wikiPageWikiLink Remote_sensing_application.
- Spectral_signature wikiPageWikiLink Satellite_imagery.
- Spectral_signature wikiPageWikiLink Segmentation_(image_processing).
- Spectral_signature wikiPageWikiLink Spectrometer.
- Spectral_signature wikiPageWikiLink Star.
- Spectral_signature wikiPageWikiLink Stellar_atmosphere.
- Spectral_signature wikiPageWikiLink Wavelength.
- Spectral_signature wikiPageWikiLink File:Spectrum_of_blue_sky.svg.
- Spectral_signature wikiPageWikiLinkText "Spectral signature".
- Spectral_signature wikiPageWikiLinkText "spectral signature".
- Spectral_signature wikiPageWikiLinkText "spectrally".
- Spectral_signature auto "yes".
- Spectral_signature date "December 2009".
- Spectral_signature hasPhotoCollection Spectral_signature.
- Spectral_signature wikiPageUsesTemplate Template:Astronomy-stub.
- Spectral_signature wikiPageUsesTemplate Template:Electromagnetism-stub.
- Spectral_signature wikiPageUsesTemplate Template:Unreferenced_stub.
- Spectral_signature subject Category:Spectroscopy.
- Spectral_signature type Article.
- Spectral_signature type Article.
- Spectral_signature type Physic.
- Spectral_signature type Technique.
- Spectral_signature comment "Spectral signatures the difference in the reflectance/emittance characteristics with respect to wavelengths (i.e.,reflectance/emittance as a function of wavelength) is called as spectral signature. The spectral signature of stars indicates the composition of the stellar atmosphere. The spectral signature of an object is a function of the incidental EM wavelength and material interaction with that section of the electromagnetic spectrum.".
- Spectral_signature label "Spectral signature".
- Spectral_signature sameAs Signatura_espectral.
- Spectral_signature sameAs Firma_espectral.
- Spectral_signature sameAs Ciri_khas_spektrum.
- Spectral_signature sameAs Firma_spettrale.
- Spectral_signature sameAs m.04g74j.
- Spectral_signature sameAs Q2446767.
- Spectral_signature sameAs Q2446767.
- Spectral_signature wasDerivedFrom Spectral_signature?oldid=682218455.
- Spectral_signature depiction Spectrum_of_blue_sky.svg.
- Spectral_signature isPrimaryTopicOf Spectral_signature.
